'\"
'\" Copyright (c) 1997-1998 Sun Microsystems, Inc.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\" 
'\" RCS: @(#) $Id: Environment.3,v 1.6 2005/05/10 18:33:55 kennykb Exp $
'\" 
.so man.macros
.TH Tcl_PutEnv 3 "7.5" Tcl "Tcl Library Procedures"
.BS
.SH NAME
Tcl_PutEnv \- procedures to manipulate the environment
.SH SYNOPSIS
.nf
\fB#include <tcl.h>\fR
.sp
int
\fBTcl_PutEnv\fR(\fIassignment\fR)
.SH ARGUMENTS
.AS "const char" *assignment
.AP "const char" *assignnment in
Info about environment variable in the format NAME=value.
The \fIassignment\fR argument is in the system encoding.
.BE

.SH DESCRIPTION
.PP
\fBTcl_PutEnv\fR sets an environment variable. The information is
passed in a single string of the form NAME=value.  This procedure is
intended to be a stand-in for the UNIX \fBputenv\fR system call. All
Tcl-based applications using \fBputenv\fR should redefine it to
\fBTcl_PutEnv\fR so that they will interface properly to the Tcl
runtime.

.SH KEYWORDS
environment, variable
